MERCURE MARSEILLE VELODROME. . From the A7 (E714), take the Vieux Port exit and follow the road that runs alongside the beach. From the A55, after the Prado Carenage tunnel, head toward the Stade Vélodrome. From the A50, take the St Giniez/Mazargue exit and head toward the Stade Vélodr ome. From Marseilles St Charles train station, take metro line 2 (toward St Marguerite Dromel) and get off at Rond-Point du Prado.